Why do I keep seeing my ex's last name EVERYWHERE?

There was this girl I liked a long time ago and I haven’t seen her in years but everywhere I go I see her name or people around me have her name it comes out in commercials and it makes me angry because it reminds me of her I liked her a lot and now she’s gone but I still remember her So maybe it’s the same with you, you see his name everywhere because you still have feelings for him.

I have similar things happening to me. We broke up about 9 months ago but I never had closure. In mean time I tried to contact him but he wouldn’t respond. I never understood why. I was not the jealous type and I was very understanding. Actually he used to say that I would leave him one day when I find someone better. I never understood why he said it but later I found that he lied about his age. Then everything click. Maybe he was ashame to to talk to me or face me. I needed to see him just for closure purposes. I’m friends with all of my exs but for someone reason he just wouldn’t answer my calls and I thought that was strange. In mean time I sent him drunk e-mails, trying to beg him to come back to me and trying to have him feel sorry for me and on and on (I still didn’t know at that time that he lied about his age). I did everything that I so strongly stand against just because I never had closure. The more he ignored me the more I wanted him. Of course afterwards I felt stupid and I still feel ashamed. I’m very secure about myself and that bothered him but again I never understood why. I basically had to confront him and just showed up in front of his house. I did tell him that I will just show up in front of his house since he didn’t want to talk to me. I even told him that I feel like I’m stalking him. So when I did show up I just lunged and him and cried it out. I asked him why he didn’t tell him me the truth about his age and he said it was because he was afraid that I would have left him. He was right. I would have left him at the beginning but I fell in love with him (I never planed to fall in love with him, it was unsuspected for me), and it took me long time to fall in love. He also had drinking problem which I tried to bring it up but he didn’t’ listen. He tried to change but never could. I didn’t know he was younger then me, 7 years younger, but in our year and half relationship I used to put him down because I didn’t not believe that grown man should act such way. At least I’m was not used to that. Then I remembered stories that didn’t make sense. I thing his dad isn’t his real dad. He told me he used to have drug problem before but I never understood why because he came from well off family. Then everything clicked. If he had been honest with me about his age, I would have behaved completely differently. I would tried to be there more for him. Since then I moved on because I had closure. I go on dates and stuff. I’m very attractive and I get looks everywhere I go. Only lately he keeps coming back to my dreams and talking to me. I just suddenly keep seeing his last name everywhere and his last name is not common. Even on business site that I’m on tried to suggest that I add his dad to my contact and I never met his dad nor I have anything with him in common. Those are just few weired things but I can go on and on. It is just strange. Maybe he is need of help. I don’t want to contact him because it would be weired but if he does contact me I would want to help him now that I understand him more. It is too strange. He is not bad guy he just makes bad decisions. Actually he is very generous and I don’t judge people based on their past. I feel like that I’m going through some dejavu thing. Actually it creeps me out and I don’t like it. It is funny, I talked to my other exes because they know me and they just think it is my subconscious talk to me. They say it is strange but maybe I feel guilty for not being there for him because I could’ve helped him.